Micro Exam 2

• symbiosis: living together
• mutualism: organisms live in a beneficial relationship
• commensalism: commensal gets benefits without harming or benefiting partner
• parasitism: host provides a habitat and nutrients for microbe while host suffers
• amensalism: the action of one organism causing harm in another
• synergism: relationship between 2 or more organisms that benefits them but not necessary. Dental caries, neither can do alone
• antagonism: competing organisms like the soil
• antibiosis: production of inhibitory compounds (antibiotics) in environment that inhibit or destroy another microbe in habitat
• pathology: scientific study of disease
• Etiology: study cause of disease
• pathogenesis: the manner which disease develops
• infection: growth of microbe on/in host
• Disease: injury to host organism, caused by a pathogen
• pathogenicity: organisms potential to cause disease
• true pathogens: capable of causing disease in healthy persons with normal immune defenses